drm/i915: Compact logical ring interrupt initialization

Identically to vfuncs interrupt mask initialization can also be
compacted for more readable code.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1452619956-27014-2-git-send-email-tvrtko.ursulin@linux.intel.com

drivers/gpu/drm/i915/intel_lrc.c

@@ -1962,6 +1962,13 @@ logical_ring_default_vfuncs(struct drm_device *dev,
 	}
 }
 
+static inline void
+logical_ring_default_irqs(struct intel_engine_cs *ring, unsigned shift)
+{
+	ring->irq_enable_mask = GT_RENDER_USER_INTERRUPT << shift;
+	ring->irq_keep_mask = GT_CONTEXT_SWITCH_INTERRUPT << shift;
+}
+
 static int
 logical_ring_init(struct drm_device *dev, struct intel_engine_cs *ring)
 {
@@ -2017,10 +2024,8 @@ static int logical_render_ring_init(struct drm_device *dev)
 	ring->name = "render ring";
 	ring->id = RCS;
 	ring->mmio_base = RENDER_RING_BASE;
-	ring->irq_enable_mask =
-		GT_RENDER_USER_INTERRUPT << GEN8_RCS_IRQ_SHIFT;
-	ring->irq_keep_mask =
-		GT_CONTEXT_SWITCH_INTERRUPT << GEN8_RCS_IRQ_SHIFT;
+
+	logical_ring_default_irqs(ring, GEN8_RCS_IRQ_SHIFT);
 	if (HAS_L3_DPF(dev))
 		ring->irq_keep_mask |= GT_RENDER_L3_PARITY_ERROR_INTERRUPT;
 
@@ -2068,11 +2073,8 @@ static int logical_bsd_ring_init(struct drm_device *dev)
 	ring->name = "bsd ring";
 	ring->id = VCS;
 	ring->mmio_base = GEN6_BSD_RING_BASE;
-	ring->irq_enable_mask =
-		GT_RENDER_USER_INTERRUPT << GEN8_VCS1_IRQ_SHIFT;
-	ring->irq_keep_mask =
-		GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VCS1_IRQ_SHIFT;
 
+	logical_ring_default_irqs(ring, GEN8_VCS1_IRQ_SHIFT);
 	logical_ring_default_vfuncs(dev, ring);
 
 	return logical_ring_init(dev, ring);
@@ -2086,11 +2088,8 @@ static int logical_bsd2_ring_init(struct drm_device *dev)
 	ring->name = "bds2 ring";
 	ring->id = VCS2;
 	ring->mmio_base = GEN8_BSD2_RING_BASE;
-	ring->irq_enable_mask =
-		GT_RENDER_USER_INTERRUPT << GEN8_VCS2_IRQ_SHIFT;
-	ring->irq_keep_mask =
-		GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VCS2_IRQ_SHIFT;
 
+	logical_ring_default_irqs(ring, GEN8_VCS2_IRQ_SHIFT);
 	logical_ring_default_vfuncs(dev, ring);
 
 	return logical_ring_init(dev, ring);
@@ -2104,11 +2103,8 @@ static int logical_blt_ring_init(struct drm_device *dev)
 	ring->name = "blitter ring";
 	ring->id = BCS;
 	ring->mmio_base = BLT_RING_BASE;
-	ring->irq_enable_mask =
-		GT_RENDER_USER_INTERRUPT << GEN8_BCS_IRQ_SHIFT;
-	ring->irq_keep_mask =
-		GT_CONTEXT_SWITCH_INTERRUPT << GEN8_BCS_IRQ_SHIFT;
 
+	logical_ring_default_irqs(ring, GEN8_BCS_IRQ_SHIFT);
 	logical_ring_default_vfuncs(dev, ring);
 
 	return logical_ring_init(dev, ring);
@@ -2122,11 +2118,8 @@ static int logical_vebox_ring_init(struct drm_device *dev)
 	ring->name = "video enhancement ring";
 	ring->id = VECS;
 	ring->mmio_base = VEBOX_RING_BASE;
-	ring->irq_enable_mask =
-		GT_RENDER_USER_INTERRUPT << GEN8_VECS_IRQ_SHIFT;
-	ring->irq_keep_mask =
-		GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VECS_IRQ_SHIFT;
 
+	logical_ring_default_irqs(ring, GEN8_VECS_IRQ_SHIFT);
 	logical_ring_default_vfuncs(dev, ring);
 
 	return logical_ring_init(dev, ring);